A videoconference (or videoteleconference) is a
set of interactive telecommunication technologies which allow two or more
locations to interact via two-way video and audio transmissions simultaneously.
Videoconferencing provides students with the opportunity to learn by
participating in a 2-way communication platform. Furthermore, teachers and
lecturers from all over the world can be brought to classes in remote or
otherwise isolated places.
Special peripherals such as microscopes fitted with digital cameras,
videoendoscopes, medical ultrasound imaging devices, otoscopes, etc., can be
used in conjunction with VTC equipment to transmit data about a patient.
Telepresence videoconferencing, where participants are able to see each other
has started to make an impact on business meetings
on substitution of international travel with telepresence conferencing.
There are basically two kinds of VTC systems:
1- Dedicated systems have all required components packaged into a single
piece of equipment, usually a console with a high quality remote controlled
video camera.
2--Desktop systems are add-ons (hardware boards, usually) to normal PCs,
transforming them into VTC devices. A range of different cameras and microphones
can be used with the board, which contains the necessary codec and transmission
interfaces.Videoconferences carried out via dispersed PCs are also known as e-meetings.
Videoconferencing is now being introduced to online networking websites, in
order to help businesses form profitable relationships quickly and efficiently
without leaving their place of work.
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